review iPhono 2


I must be slow as I could not find a link to place this as a review. 

So, I have written about the 1st gen iPhono in the past, comparing it to the very fine Coincident phonostage which I believe is about $6k. I preferred the iPhono but I could just as easily imagine someone else going for the Coincident unit. In that review I thought the Coincident had a better sustain, decay and bloom while the iPhono was hands down the winner in the prat department. The iPhono made my feet move, the Coincident, not so much.

Later on I added the iPower to the fray and the iPhono shored up the areas it lacked. As a former owner of the very very nice Graaf GM70 I was a bit surprised and dismayed when I finally received the iPhono and heard it once fully run-in. I would not have shelled out the thousands of dollars I paid for the GM70 and the vintage NOS tubs I purchased to make it sing, oh and the $1600 I had to spend on the Ortofon ST-80SE SUT to use with the MM inputs of the Graaf as I could not get it quiet enough to tolerate with the MC inputs. The very small $400 iPhono basically did everything the Graaf did (with the iPower that is).

My reference phonostage for the last few years (and probably many more to come) is the fabulous AMR PH77 and I’m running it with a set of Bendix 6900 tubes which elevates its performance even more than the already stellar stock configurations performance. In comparison to my PH77, I found the 1st gen iPhono to be a bit thin and during crescendos it could become a little ragged. Still, it remained in my arsenal as a handy and trusty back-up. The PH77 is of course tubed and as we tube owners know all too well, sometimes they fail and you are down for a while.

Compared to most phonostages I have heard, some of them costing up to $9k I found the 1st gen iPhono to be able to hold its own in some cases crazy as it may sound it was just plain better. I believe AMR intended the iPhono/iTube to be used in conjunction as a sort of baby AMR PH77 and I ran it that way for some time and yes, it does share that familial DNA when it comes to sonic signature.

Move forward some years and I have in my possession the iPhono2 and the iTube 2. To say that the iPhono 2 is better than its predecessor is far too simple a statement. Mr. Fremer thought it to be at least twice as good as the original. I would agree with his assessment. Out of the box with the included iPower is shows far more prowess in the areas of bass but otherwise is pretty close to the original. After about 20 hours a bit more fluidity begins to appear. Again at the 100 and about the 340 hour mark big jumps occur in the areas of fluidity and continuousness. When you get to 480 hours forget about it!

This thing sounds like it has a tube in it, and I don’t mean in that classic overly warm soft rose colored sound that I found so fantastic when I was new to high end audio. No, I am referring to a pellucid but meaty embodiment and rendering of the music. A sound one would immediately associate with MUCH costlier gear.

Most of my listening has been done with my second turntable system which is composed of a Technics SL-1200 GAE with a fully broken in Denon 103R on a LP Zupreme 15 gram headshell and my London Reference. The phono stage then feeds the iCan Pro (best pre I have heard and I have owned 2 MFA Ref units, the baby Ref and the full Ref), the Tube Research Labs GTP 2, and many more. I have had in my system for evaluation the Veloce (battery powered) the Allnic L3000 and many others. From the pre it goes to the custom active crossover and then to a Graaf Modena for the mids, a Harmonix Reimyo PAT777 for the Raal Ribbons and a pair of Acoustic Reality Thaumaturges ($25K when available) for the woofers. The speaker is called the Encore and is my own design. I simply got tired of paying for passive boxes made of MDF with wood screws going directly into the glued wood dust and sold for tens of thousands of dollars but I digress :)

The sound is at once flowing and dynamic. It grabs and holds my attention and really gets my foot tapping. The sound is MUCH more refined and fuller than the original iPhono with no hint of raggedness during large scale bombastic music. For instance it scales far more convincingly on some of the more challenging passages in Hans Zimmers wonderful soundtrack to Gladiator. The original could sound a bit blocky if you take my meaning. It did not have the ability to gracefully scale the mountain so to speak. The iPhono 2 does it with much more ease and refinement.

Here is where it gets interesting. As good as the iPhono 2 is out of the box and it is very very good (and especially after 340 hours or more) in fact far far better than the DS Audio optical cartridge system that I auditioned, it can be made to sound a good deal better. Now this is my own thing, the iFi line of SMPS’s are admittedly super quiet and much better than most SMPS such as the ones inside my apple gear, but I hate them ALL.

I do not like green eggs and.., ahem. Sorry, just flashed back to Dr. Seuss when I thought of my aversion to SMPS’s.

I mean I understand why they are used, efficient,  cheaper to ship and inherently regulated. But they still hurt the sound of my system. As an aside I am actually having a custom linear PS built for my SL-1200 GAE to replace the awful SMPS that Technics installed. So to the point, I replaced the iPower with a linear regulated lab grade power supply. I don’t like hyperbole so I offer none but the result was nothing short of breath taking. There is a great deal more that can be had from that little silver box with a good (and I do mean good) linear supply.

Next I added the iTube 2 to the fray. As I mentioned before AMR always sorta intended this combo to be a baby PH77 as was or may still be mentioned on the iFi site. How to put this; everything I have said about the iPhono 2 up to this point; multiply it by 2 times again. Now you have that sorta living presence that the performers are in your vicinity. Things are rounder, more palpable and it breathes much easier. Again I powered the iTube 2 with a linear supply along with the iCan Pro. Please don’t misunderstand me, I lived with these units powered via there very good SMPS’s for quite a while and they made beautiful music BUT I knew there was much more to be had.

Like Mr. Fremer (paraphrased) stated, to get better than the iPhono 2 you are going to have spend much more and you still may not surpass this unit. I auditioned a $16K current phono stage that people rave over and my ears tell me that it cannot compete with iPhono 2/ iTube 2 combination.  I will not call this a reference phono stage. It is great and I listen to it daily but I reserve titles like reference for the likes of Ypsilon, VDH Grail SB and my AMR PH77. The little combo does far more than I could have imagined. It capable of truly astounding musical reproduction on a grand scale.  

Remember to let it run in for at least 100 (and I suggest 300) hours before you really start to judge it but my guess is it won’t take most people that long to know that this is special gear designed by some super gifted engineers who also happen to actually be able to HEAR. Thanks for reading and I hope this helps someone make a decision one way or the other. Happy listening.


audiofun
Mantis: 

Funny, I was thinking of Blue Circle when I read your mention of that very company. I use there products, I think I have the thingee or whatever it is called, it is designed to clean up junk on the line from SMPS's. They really work, I met Gilbert here in Chicago a couple of years back at Axpona. He was performing a test where he had one of the Audio Prism Noise Sniffers (I bought one) plugged into an outlet with a lamp using a SMPS. The sniffer was howling, in went one of his thingees and dead silence. It was impressive but I asked him to follow me and I found another outlet which was out of his control, he was super gracious and accommodated my admittedly bold request. His device passed the smell test and I purchased it on the spot. It's been in my system doing duty every since. I've taken it to buddies homes and demonstrated its abilities. It really works and I've been planning to purchase more of them and also try his big filter.

i also use a PS Audio P5 with an AMR mk2 fuse installed. I just picked the P5 up this past Saturday. It is an amazing device and is far better than the 1st gen power plants of which I once owned (p300 and p600). They were good but they tilted the tonal balance of my system up in frequency. The P5 does not do this at all. I am running it at between 540 and a 620 watt draw.

The added noise on the MC side is most likely due to the fact that the gain is higher by (I forgot the MM gain level) what? Some 20 or more dB? So you are amplifying the noise on the line more so than when using the MM inputs which is prob around 40 dB.
FYI, I don't believe it recommended to plug the thingees directly into the PS Audio power regenerators due to the capacitance.
Funny how life works sometimes, I have been eyeing the PLC Thingee FX2 X0e for a while. The newer FX2 models claim to have twice the filtering capacity, and the "x0e" models have a wider spectrum of noise filtering. If you got yours at an audio show two years ago you probably have the newer FX2 x0e model.

I'm sorry to somewhat highjack your thread with questions about power supplies and strategies for burning in phono preamps, just been very excited about all of this since experiencing the Pyramid LPS. Been a bit too busy for audio the past 18 months, and kind of got myself to a point where I don't spend much time with it, and when I do spend time with it I'm usually trying to fix some issue rather than enjoying the music, so I just got to a point where it feels like a chore and I am not enjoying it as much as I used to, but now I'm getting the rewarding feelings again big time. I also digitize my vinyl records to produce high quality 24/96 FLAC files for listening on-the-go, so the past little while I keep thinking there's no point in digitizing any of my records until I get the new power supply or until the iPhono2 fully burns in, or until I get a power conditioner.

Just don't want to put myself into a position where I do a bunch of work but then have to re-do everything, so I keep getting this feeling that I might as well wait until I get all my upgrades, and until the unit fully burns in, before I really commit to the bulk of the work. Now I finally have the LPS, the AMR fuse is on its way, and I got the unit burning in 24/7, so I'm finally seeing the finish line and that's very exciting.

P.S. The MC setting picking up a bit more noise on the line makes sense, as that input does apply way more gain to the incoming signal, and I did not take the time to carefully remove 100% of the the grounding noise (it's harder to hear when you are bypassing the phono preamp and recording the super quiet cartridge signal directly, you have to turn your amp up to max just to hear anything). I did my best to get rid of as much grounding noise as I could, but I don't think it's as perfect as I had it before. But even so, it's really not bad and it sounds almost perfect. I'm thinking it won't affect the burn in, since it's possible for it to be way worse, I actually got it really quiet all things considering.

Anyway, I'd like to try to bring the conversation back to the iPhono2. Thanks for taking the time and letting me pick your brain.
Dang, I got the fuses and they turned out to be the wrong size. It seems that the PS26KX needs the large fuse, not the small. Looks like it'll be another two week wait, but it's no big deal. So far I have had the iPhono2 burning in for 9 days and a few hours, which adds up to over 220 hours, and I had at least 150 on it prior to that. It took a year and 3 months to put that first 150 on it, so it's amazing that in just 9 days I can reach 370 hours. And MAN is it sounding good. It's becoming more and more nuanced and warm and losing harshness as the time goes. The character just keeps changing, it really keeps surprising you.

For anyone reading this who is wondering if you should wait for this thing to burn in on its own, or try the burn in, all I can tell you is that I regret not doing this sooner. In about three weeks you can get this thing to 700 hours, whereas that same amount of burn in would take years, even if you listened for a couple of hours every single day.

At first I thought that burning it in would deprive me of the "education" of listening to it happen, as another poster also suggested, but I find that this has been a very educational process. I check the sound pretty much every day to see where it's at, and you get to watch it change by the day. It's really fun, and it makes the changes more salient than they would be if you stretched this process over years.